. >>> nbc sports bob costas created a whole lot of controversy last sunday night while coming on the news about kansas city belcher having killed his girlfriend before taking his own life. he says if belcher didn't possess a gun he and cassandra would be alive. kostas spent the week defending his comments. here he is on "o'reilly factor." >> i never used the words gun control. i quoted from a column by jason wit lock who was in kansas city for a long time. now is on the fox sports web site in which he mentioned credibly a gun culture in this country. it plays itself out in many ways but it's a mentality about and toward guns that almost always leads to tragedy rather than safety. >> not always leads to tragedy. i think you are a great sports caster. i do. i thought you did a terrific job at the olympics. for the same reason i don't try to do commentary on sports you might want to do a little brushing up on the facts before you comment on the gun culture. 4,000 times a day in this country 4,000 times a day guns are used to prevent a crime by private citizens. there is 50 times more of